Shuttle



July 3, 192s. 1,675,516

F. C. REINHARDT SHUTTLE Filed Oct. 22, 192'? www,

Patented `uly 3, 1928.

UNITED; STATES PATENT NoI-Fica FRANZ C. REINEARDT, OFPATERSON, NEWJERSEY.

. SHUTTLE.

7 In the art of forming 'ribbon having double shots of filling, so as togive fOr instance the ribbed effect characterizinr grosgrain, it hasheretofore been deemed necessary to perform two successivejs'hutt'lepassings, one for each shot, andto blnd 1n the -irst shot by a `crossingof a few ofthe warps before the other shot is effected'and the mainycrossing of the warps performed, thus to prevent the possibilityofthesec-7 ond shot of filling being Vcaused partially or wholly to rideupon orcrossthe first shot so that they would not ,liesideby side in theplane of the fabric for its full width and `hence roduce a defect..`This necessitated the oom performing two `complete cycles or pickstoproduce a" erossTrib-one for theffirst shoty and its binding-in by acrossing of a few of the war s, and another for the' second shotand thebinding of both shots by the crossing ofA allV of the` warps. The obectof this inventionis to rovide a shuttleinthe use of whiehboth s ots offilling or weft thread can be effected' `at once ,and` regularly incororated 'inw the nfabric so as to lie s ide'byI side in itsjplane for its"full width, thus 7 greatly to increase' productionbyamakingit possibleto weave the samellength of goods by one-halfas many picks orcyclesofthe loom as heretofore. In the drawing, 7* Fig. 1 isa top plan View of`a shuttle embod ingmy invention; s, 7 *ig 2 isa front elevation thereof7 Figs. 3 ande are sections oIi` linesi37-3 and 1s-7447, Figi; and 7`77` 7 Fig.7 5 s a plan of the fabric being formed andthe shuttle Alayingthe iillingtherein. The shuttle 1 shown is of the bow tpe (here curvedor arcuate in plan) Van is 7 equipped with the 7 usual 77springpressedbrake to bear against and impose a certain degree of `frictionresistance` ona supply' 3 oflling, arranged to rotateon t e "spindle 4,allofwhich may besubstantially as usual in. bow shuttles excepting thatthe supply 3 is according to my inventionjcomposed of two yfillingthreads a` and b which are wound into a` package fortuinI `such supplywithout twist around cach; ot ier, as

Through thesepoutlets, whichare in the exppears where they extend fromthe sup` ample narrow "slits, `are respectivel extendedthe fillingthreads a and b. s hen the shuttle isi'n action, moving back and forththrough the shed, first one thread andthen the other will encounter theabutment and be held thecloser to the fell, or as whatI herein `term theforward thread.

` There nisme'ans arranged within the bow and in a line cutting itsrises 1h longitudinally of the 4shuttle to tension both threads.

This is alforded by two Guides 7 7, preferably elastically supported, asby springs 8 8 which may beaflixed tothe shuttle in holes 9 therein in awell-known way. The action of this means,7and more particularly of thetwo guides which .in the present example constitute the same, will behereinafter set forth. 7 Iny the present example there is also auxiliarymeans to tension both threads, to wit, a `pair of guides 10 10, hereelastically supported by springs 11 11 affixed to the shuttle in thesame manner as springs 8 8 and preferably near the latter, and anotherpair of guides 12 12 arranged on a staple 13 at the inside of the summitof the bow. When all these guides are used `the 'preferable threading ofthe shuttle is that shown, where one thread extends through s one seriesof guides l7, 10 and 12 and then through one outlet 5 `and theotherextends through the other series oguides 7, 10 and 12a-nd then throughthe other outlet 5.

Each outlet 5 extends from the summit of the bow back substantially tothe aforesaid line cuttin the bow" rises longitudinally of the s uttle,their rear termini being in Fig. 1 indicated by the dotted line 14'.

`In weaving with one shuttle I have found in practice that in orderuniformly to produce grosgrain in which each two shots of filling shalllie side by side in the plane of the fabric for its full width it isnecessary not simply that one thread should be held forward of the other(as by abutment 6') but vthat they should be well spaced and that, therearward thread should be subject to inferior resistance; their ultimateside-byside arrangement will be manifestly insured if the forward threadhas an appreciable lead on the other and also if it is so tensionedvthat it will exert superior pressure in the convergence ofthe shed.This results in my construction mainly from placshuttle and extendingthe outlets 5 back substantially to said line. For then, whereas onethread (see b in Figs. l and 5) is in either flight of the Vshuttle heldforward of the other and subject to resistance at 7 as well as at 6 theother thread is held well back ot' the first thread and is practicallyfree of resistance at `7: guide 7 for this latter' thread is in Fig. lretracted by its spring against the rise of the bow, or inactive intensioning, since the thread extends through it without deflection. Inother words, when the shuttle, is reciprocating in weaving devices 7 87--8 are alternately stressed by the threads, and the one which is notstressed then sim ly contines its thread to reeving in more or ess astraight line and well back of the other or forward thread. y

It is ol course desirable that the forward thread be advanced by thepull oi' the shuttle as close as possible to the fell of the fabric l5so as to reduce the likelihood ot the reed 16 (see Fig. 5),v inbeating-up the two threads, disturbing their relation as determined bythe shuttle; hence, and also to insure complete take-up o'lz the slackthat would otherwise ensue in the l'irst part ot the shuttles flight ineither direction, it is best to use auxiliary tension means, as l() l0and 1212.

This is the first instance, so far as I am aware, where,given adouble-thread-delivering shuttle having a bow provided with a forwardthread-separating abutment and thread outlets for the respective threadsextending back from said abutment, such shuttle also has meansindependent of the abutment for imposing on that thread which is held bythe abutment relatively forward of theother thread on the flight of theshuttle ineither direction tension exceeding the tension on the otherthread.

An important element of my invention is the employment of a singlesupply 3 having the threads wound to form the package without twistaroundeach other whereby, in the presence or' means in the shuttle, as 6and the guides which separates them, they can be ted out of the shuttlewithout obstruction.

there the bow presents lin plan an arcuate outer face and has threadoutlets one on each side of its summit and a threadseparating Vabutmentat said summit and the outlets extend from the summit substantially to aline cutting the bow rises longitudinally of the shuttle, the threadwhich bends around the abutment can engage in the outlet for the otherthread as shown at 1T in Fig. l; in short, the salient which the curvedouter face of the bow presents to the straight line which the threadnaturally assumes is cross-sectonally bifurcated so as to receive thethread, which would otherwise roll otl the bow, up or down, into a lessfanote that vorable position for insuring the mentioned desired ultimaterelation of the two threads. To insure the forward thread finding theoutlet of the other thread in this way it is preferable to provide agroove 18 (Figs. 3

-and 4) at the summit, which connects the two outlets.

Having thus `fully described my invention, what I claim is:

v 1. A double-thread-delivering shuttle having a bow provided with aforward Athreadseparating abutment and thread outlets for the respectivethreads extending back from said abutment, said shuttle also havingmeans independent of the abutment for imposing on that thread which isheld by the abutment relatively forward of the other thread on theflight of the shuttle in either direction tension exceeding the tensionon said other thread. j 2. A double-thread-delivering shuttle havinga-bowprovided with thread outlets for the respective threads one on eachside of its summit and with a thread-separating abutment at, said summitand also having means to tension both threads arranged in a linecutting'the bow rises longitudinally of the shuttle, said outlets eachextending from said summit substantiall to said line.

`3. A double-thread-delivering shuttle having a bow provided with threadoutlets for the respectiveV threads one on each side of its summit andwith a thread-separating abutment at said summit and also having elasticmeans to' tension both threads arranged in a 'line cutting the bow riseslongitudinally of the shuttle, said outlets each extending from saidsummit substantially to said line.

4; A double-thread-delivering shuttle having a bow provided with threadoutlets for the respective threads one on each side of its summit andwith a thread-separating abut- .ment at said summit and also havingthread guides for the respective threads arranged each in a line cuttithe bow rises longitudinally of theV shutt e, said outlets eachextending from said summit substantially to said line. i

n 5. A double-thread-delivering shuttle having a bow provided withthread outlets for 'the respective threads one on each side of itssummit and with a thread-separating abutment at said summit and alsohaving elasticallv supported thread guides for the respective threadsarranged each in a line cutting the bow rises longitudinally of theshuttle, said outlets each extending from i said summit substantially tosaid line.

6. A double-thread-delivering shuttle having a bow presenting in plan anarcuate outer face and provided with thread outlets for the respectivethreads one on each side of its summit and with a thread-sepav ratingabutment at said summit, said outlets each extending from said summitsubstantially to a line cutting the bow rises longitudinally of theshuttle, whereby that thread which is held by the abutment relativelyforward of the other thread on the Hight of the shuttle in eitherdirection will engage in the outlet appertaining to the latter thread. i

7. A double-threacl-delivering shuttle having a bow presenting in planan arcuate outer 'face and `provided with thread .outlets for therespective threads one on each side of its summit and with athread-separating abutment at said summit, said outlets each extendingAfrom said summit substantially to a line cutting the bow riseslongitudinally of the shuttle and the bow having at said summit anexterior thread-directing groov connecting the two outlets. i

8. In combination, a shuttle having a bow provided with two threadoutlets one on each side of its summit and with a thread-separatingabutment at said summit, and a double-thread supply having the threadsthereof wound into a package without twist around each other, saidsupply being revolubly supported in the shuttle and said threads beingadapted to extend respectively through the two outlets.

` 9. A double-thread-delivering shuttle having a bow and provided with'thread outlets for the respective threads one on each side of its summitand with a thread-separating abutment, said outlets each extending backfrom said summit, and the shuttle having each side of said abutmentmeans to receive and hold against displacement up or down relatively tothe bow that thread, which trailingthe shuttle when in Hight, extendsaround said abutment.A

In testimony whereof I affix my signature.

FRANZ C. REINHARDT.

